Automatic oiling-pump.



P. A. TORNWALL & E. B. DARROW.

AUTOMATIC 01mm PUMP. APPLICATION FILED 1107.9,1908.

937,488., Patented Oct. 19,1909.

. I I I [U anmhtozs -H PERRY A. TORNWALL AND DARROW, OF HOUSTON,MISSISSIPPI.

AUTOMATIC OILING-PUMP.

Specification of Letters Patent.

Patented Oct. 19, 1909.

Application filed November 9, 1908. Serial No. 461,814.

il -o all whom 'it may concern:

Be it known that we, PERRY A. TORNWALL and ELMER E. DAnRow, citizens ofthe United States, residing at Houston, in the county of Chickasaw,State of Mississippi, have invented certain new and useful Improvementsin Automatic Oiling- Pumps; and we do hereby declare the following to bea full, clear, and exact description of the invention, such as willenable others skilled in the art to which it appertains to make and usethe same.

The invention relates to an automatic oiling pump or lubricator forsteam or other engines and pumps.

The primary object of the invention is the provision of an automaticoiling pump or lubricator in which a piston is actuated by the pressureof fluid in the main cylinder of an engine or the like to force oil orlubricant into the main fluid supply pipe where the said oil orlubricant is conveyed to the main cylinder of the engine or the like forlubricating the operating parts thereof.

Another object of the invention is the provision of an automatic oilingpump or lubricator for engines or the like in which the piston of thelubricator is forced in an opposite direction after being actuated by aresetting spring upon the exhaust of the fluid from the main cylinder ofthe engine or the like, and means for regulating the movement of thesaid piston to effect the proper forced feed of the lubricant adapted tobe fed into the main supply pipe leading to the cylinder of the engineor the like.

Another object of the invention is the provision of an automatic oilingpump or lubricator which is simple in construction, thoroughly eflicientin operation, cheap and inexpensive in the manufacture.

In the drawings accompanying and forming part of this specification isillustrated the preferred form of embodiment of the invention which toenable those skilled in the art to practice the invention will be setforth at length in the following description, while the novelty of theinvention will be brought out in the claims succeeding the description.It may be found expedient to change and modify the details of theinvention and this may be done as within the scope of the appendedclaims without departing from the spirit of the invention.

In the drawings :F igure 1 is a view with the engine partly in sectionas well as a greater portion of the invention applied thereto. Fig. 2 isa rear elevation of the engine with the invention mounted thereon.

Similar reference characters indicate corresponding parts throughout theviews in the drawings.

In the drawings, the numeral 5 designates an oil reservoir or receptaclemounted upon a suitable support 6 secured to the outside face of acylinder 7 of the conventional form of steam engine and in this maincylinder works a main piston 8 the same also being of the usualconstruction in use with the ordinary form of steam engine. Threadedcentrally into the head 9 of the main cylinder 7 and formingcommunication therewith, is an elbow tube or pipe 10, the verticalportion of which forms a working cylinder or chamber 11 for the lowerend 12 of a pumping piston 13 and which chamber 11 is provided with apacking gland 14c, and in threaded engagement with the vertical portionof the elbow pipe is the lower collar terminal 15 of a bracket 16, whichhas its upper terminal formed with a collar 17 into which is threadedthe lower end of a pipe section 1.8, the latter being in alinement withthe vertical portion of the elbow pipe 10 and which pipe section 18 isformed with a chamber or cylinder 19, in which works the upper headedend 20 of the piston 13, and rising from the headed end 20 of the saidpiston a centering lug 21 engaged by the lower end of a coiled resettingspring 22, the opposite end of which has its bearing against a seat 23at the point of juncture of the upper threaded end of the pipe section18 with a coupling casting 2 1, which latter has a central passage 25 incommunication with a supply pipe or tube 26 through which oil is liftedand adapted to pass from the oil reservoir.

The upper end of the supply pipe or tube 26 is threaded into a checkvalve casting 27 the latter containing the usual flap check valve 28 anddepending from the valve casting 27 is a drip pipe or tube 29 formedwith a sight section 30 the latter in communication with a pipe or tube31 threaded into and in CODllIlUlllCfl-tlOll with a main steam supplypipe 32 leading to the steam chest of the main cylinder 7 of the engine.The pipe or tube 31 is formed with a turning plug valve 33 the latteradapted to control the supply through this pipe or tube 31 into the mainsteam supply pipe.

Leading from the oil reservoir 5 and in communication therewith is anoil feed pipe 34 the latter also in communication with a check valveextension 35 formed on the casting 24; and contained within the saidextension 35 is the ordinary ball check valve to interrupt the feed ofoil from the oil reservoir 5 into the passage 25 communicating with thesupply pipe or tube 26 which latter is controlled by a ball check valve37 contained within the casting 24 to prevent the back flow of oilsupplied from the oil reservoir after entering said supply pipe or tube.

Mounted in the elbow pipe 10 is a crank actuated regulating stem or rod38 the latter adapted to regulate or limit the throw of the'lower end 12of the piston 13 of the oil pump. Threaded on the lower end of the pipesection 18 is a packing gland 39 the latter surrounding the piston 13 atthat portion working in the said pipe section so as to prevent theescape of oil when fed from the oil reservoir.

When steam is introduced into the main cylinder of the engine 7 inadvance of the piston 8, the force of the pressure of steam extends oris communicated through the elbow pipe 10 to the lower end 12 of thepiston 13 thereby necessarily raising the said piston 13 against theresistance of the resetting spring 22 into the chamber 19 of the pipesection 18; thereupon oil or lubricant is forced from the oil reservoir5 through the supply pipe 26 thence through the drip tube 29 into themain steam supply pipe 32 leading to the main cylinder 7 of the enginewhere the oil is utilized for lubricating purposes. The oil is preventedfrom returning through the supply pipe 26 by the check valves 28 and 37respectively when the piston 13 recedes by the action of the resettingspring 22 and upon the release of steam through the exhaust port of theengine in the main cylinder thereof.

That is claimed is 1. In an automatic oil pump, the combination with amain cylinder and its piston, of an elbow pipe mounted in the head ofsaid cylinder for communication therewith, a bracket connected to saidelbow pipe, a pipe section connected to the bracket, a pumping pistonhaving opposite ends working in the pipe section and elbow piperespectively, an oil reservoir, a feed pipe between said oil reservoirand the pipe section, a supply pipe leading from the pipe section and incommunication with the main supply pipe to the cylinder, check valves toprevent back flow of oil in the supply and feed pipes, and a resettingspring acting upon the pump piston.

2. In an automatic oil pump, the co1nbination with a main cylinder andits piston, of an elbow pipe mounted in the head of said cylinder forcommunication therewith, a bracket connected to said elbow pipe, a pipesection connected to the bracket. a pumping piston having opposite endsworking in the pipe section and elbow pipe respectively, an oilreservoir, a feed pipe between said oil reservoir and the pipe section,a supply pipe leading from the pipe section and in communication withthe main supply pipe to the cylinder, check valves to prevent back flowof oil in the supply and feed pipes, a resetting spring acting upon thepump piston, and manually operable means mounted in the elbow pipe toregulate the throw of the pump piston.

In testimony whereof, we aiiix our signatures, in presence of twowitnesses.

PERRY A. TORNIVALL. ELMER- E. DARROIV.

lVitnesses J. S. IVILLIAMS, WALTER E. SCOTT.

